CM850 Electronic Control System – 019-021   Cruise Control or PTO ON/OFF Switch

General Information

TOC

Marine Applications


The Cruise 1/2 control switch is located on the control panel and has three settings, Cruise 1, Cruise 2 and OFF. The rocker switch is used to activate or disable the cruise control operation. The cruise control ON and OFF circuit consists of the Cruise Control 1 and 2 signal lines, switch common ground and the rocker switch.

 
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Resistance Check

TOC

Marine Applications


If INSITE™ electronic service tool is available, monitor the switch for proper operation. If not, follow the troubleshooting procedures in this section.

Locate and remove the Cruise 1/2 switch from the connector.

Adjust the multimeter to measure resistance.

Touch the multimeter probes to the Cruise 1 signal switch prong (3)
and the battery ground prong switch prong (2).

Turn the switch to the OFF position and measure the resistance. The multimeter must show an open circuit (100k ohms or more).

If the circuit is not open, the switch has failed. Replace the switch.

Touch the multimeter probes to the Cruise 2 signal switch prong (1)
and the battery ground prong switch prong (2).

Turn the switch to the OFF position and measure the resistance. The multimeter must show an open circuit (100k ohms or more).

If the circuit is not open, the switch has failed. Replace the switch.

 
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Check for Short Circuit to Ground

TOC

Marine Applications


Touch the multimeter probes to the Cruise 1 signal switch prong (3)
and the battery ground prong switch prong (2).

Turn the switch to the Cruise 1 position and measure the resistance. The multimeter must show an closed circuit (10 ohms or less).

If the circuit is not closed, the switch has failed. Replace the switch.

Touch the multimeter probes to the Cruise 2 signal switch prong (1)
and the battery ground prong switch prong (2).

Turn the switch to the Cruise 2 position and measure the resistance. The multimeter must show an closed circuit (10 ohms or less).

If the circuit is not closed, the switch has failed. Replace the switch.

 
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Check for Short Circuit from Pin to Pin

TOC

Marine Applications


Check for a short circuit from pin to pin.

Touch the multimeter probe to the Cruise 1 switch signal prong (3). Touch the other multimeter probe to the Cruise 2 switch signal prong (1).

Turn the cruise control switch to the OFF position.

The multimeter must show an open circuit (100k ohms or more).

If the circuit is not open, there is a short circuit between the Cruise Control 1 and Cruise 2 signal lines. Replace the switch.

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Last Modified:  21-Mar-2005